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If you have a fraction divided by another fractions things can get tricky, but there is an easy way to avoid getting triple decker fractions! Have a look at this example: (1/2) / (2/5) = (1/2) x (5/2) = (...
first of all it is best to get rid of the brackets. You do this by times each component in the bracet by the number on the outside in this case it is 2.
7x + 8 = 12x - 4
then you want to get...
In order to solve this question we simply must substitute x=1 into f(x). But what is f(x)? What does it actually mean to make a subsitution? f(x) has a fancy name attached to it called a funct...
Two methods for simultaneous equations: making them equal to each or substitution. If they both have a common term, for example "y", then you can do substitution, otheriwise find a way to make t...
-Tangent is a straight line that touches, but does not intersect, the curve at the point (2,8).
We need to find the gradient of the curve at the point (2, 8). To do this, expand the equation, diffe...
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